Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Mon 13 Jan 2003 | The Vale of Glamorgan | 3 | 3 | Slight |
| Sun 19 Jan 2003 | The Vale of Glamorgan | 3 | 4 | Slight |
| Thu 6 Feb 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Fri 14 Feb 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Tue 25 Feb 2003 | The Vale of Glamorgan | 2 | 5 | Slight |
| Sat 1 Mar 2003 | The Vale of Glamorgan | 2 | 2 | Serious |
| Sun 9 Mar 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Thu 13 Mar 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Mon 17 Mar 2003 | The Vale of Glamorgan | 3 | 2 | Slight |
| Wed 19 Mar 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Thu 20 Mar 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Sun 23 Mar 2003 | The Vale of Glamorgan | 2 | 2 | Slight |
| Fri 28 Mar 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Sun 6 Apr 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Thu 17 Apr 2003 | The Vale of Glamorgan | 2 | 4 | Slight |
| Sat 26 Apr 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Fri 30 May 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Wed 11 Jun 2003 | The Vale of Glamorgan | 2 | 2 | Slight |
| Mon 16 Jun 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Wed 18 Jun 2003 | The Vale of Glamorgan | 1 | 1 | Slight |
| Sun 22 Jun 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Sat 5 Jul 2003 | The Vale of Glamorgan | 3 | 1 | Slight |
| Fri 18 Jul 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Fri 1 Aug 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Sat 9 Aug 2003 | Cardiff | 1 | 2 | Serious |
| Wed 13 Aug 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Fri 15 Aug 2003 | The Vale of Glamorgan | 3 | 2 | Slight |
| Mon 15 Sep 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Fri 19 Sep 2003 | The Vale of Glamorgan | 2 | 2 | Slight |
| Tue 21 Oct 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Sat 25 Oct 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Sun 2 Nov 2003 | The Vale of Glamorgan | 1 | 2 | Slight |
| Fri 14 Nov 2003 | The Vale of Glamorgan | 2 | 3 | Slight |
| Sat 22 Nov 2003 | West Oxfordshire | 1 | 1 | Slight |